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whats the hotness in high flowing ??

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    whats the hotness in high flowing ??

    have a tiny little oem BW K04/EFR that does nearly 400hp on a 2L at 1.6bar boost, but its at its limit

    it makes incredible low end, but it could do with a little more flow up the top, and a little less off idle. i don't want to make the motor something it isn't, just give it a little nudge, and make it work a little better up the top.

    i can get a spare oem turbo NOS for $300, and am considering getting one to have a new compressor wheel done, and port the internal waste gate etc.

    who are the go-to guys these days?
    Mit freundlichen Gre

    Originally posted by Keith Duckworth
    "I think that in a racing engine, the closer it is to disintegrating, in general the better its performance will be "

    #2
    Procharge down here in melbourne are huge, they do their own billet wheels, big cnc setup as well. I use nick at raceequipped as he is my side of town
    Originally posted by 50RTD
    Dave, have you uploaded the data from the carby?

    Comment


      #3
      what ballpark $$$ are we talking?
      Mit freundlichen Gre

      Originally posted by Keith Duckworth
      "I think that in a racing engine, the closer it is to disintegrating, in general the better its performance will be "

      Comment


        #4
        note to self so i dont have to always find this pic





        Mit freundlichen Gre

        Originally posted by Keith Duckworth
        "I think that in a racing engine, the closer it is to disintegrating, in general the better its performance will be "

        Comment


          #5
          $800-1000 for billet wheel and housing machined if need be or flapper mod. More if bearings or oil seals are fucked

          Sent from my Nexus 6 using Tapatalk
          Originally posted by 50RTD
          Dave, have you uploaded the data from the carby?

          Comment


            #6
            cool, ive sent both an email with Turbo specs and pics, and expectations.

            Turbo is brand new OEM NOS

            see what they can come up with, thanks for the tip
            Mit freundlichen Gre

            Originally posted by Keith Duckworth
            "I think that in a racing engine, the closer it is to disintegrating, in general the better its performance will be "

            Comment


              #7
              Hypergear has pricing lists on their website if you want something to compare against
              Originally posted by Rdyno
              70ynu has to be the most retarded cunt here. "Help me please" me "you need to remove your head" him "fuck off cunt I'm to lazy fuck off out of my thread you told me to do something I don't want to do so you're a cunt fuck off can some one please tell me an easier way???"
              Originally posted by Tripper
              Its a tight battle between you and rogercordia for the most retarded member on here, thou i think you have it by 5 window licks

              Comment


                #8
                thanks :)
                Mit freundlichen Gre

                Originally posted by Keith Duckworth
                "I think that in a racing engine, the closer it is to disintegrating, in general the better its performance will be "

                Comment


                  #9
                  That looks fucking tight in the turbine a/r would be spending some time in matchbot if you can find the specs on the OEM turbo, make sure you don't end up with a surging choked POS
                  Originally posted by ALLMTR
                  the theory is the fuel pump is one of the only things that can fuck out on a diesel

                  Comment


                    #10
                    Originally posted by TRD-MX62 View Post
                    ... make sure you don't end up with a surging choked POS
                    Yeah, is it worth looking at exhaust pressures before considering a larger comp wheel?
                    If the exhaust side is choking it, a larger comp wheel surely won't help much.

                    Comment


                      #11
                      bigger wastegate?

                      the turbine, although small, dumps into a 3 1/2" dump pipe std (farking huge!). i wouldve thought if the turbine is choking it, then just port around it with a bigger wastegate and let the compressor continue to wind up.

                      tbh though, im hardly a turbo professional, and was kindve hoping i could go somewhere with experience, and say 'hey ive got XYZ turbo what can you do with it' and theyd have all the answers and just do it
                      Mit freundlichen Gre

                      Originally posted by Keith Duckworth
                      "I think that in a racing engine, the closer it is to disintegrating, in general the better its performance will be "

                      Comment


                        #12
                        Originally posted by doctor ed View Post
                        bigger wastegate?

                        the turbine, although small, dumps into a 3 1/2" dump pipe std (farking huge!). i wouldve thought if the turbine is choking it, then just port around it with a bigger wastegate and let the compressor continue to wind up.

                        tbh though, im hardly a turbo professional, and was kindve hoping i could go somewhere with experience, and say 'hey ive got XYZ turbo what can you do with it' and theyd have all the answers and just do it
                        turbine needs to be able to flow enough to extract the required energy and turn it into shaft horsepower to then spin your bigger compressor wheel, if you just wastegate the gasses it will never spool or surge like fuck

                        Borg warner have a really good turbo size calculator called match bot that is worth throwing numbers into...

                        First I'd suggest run the stock turbo log your exhaust back pressure, boost and fit a shaft speed sensor then look at compressor (and turbine if needed) options rather than let some "turbo guy" guess, you can get away with that with larger displacement street cars but for something seeing track time it's worth the effort to match something up right.

                        If there are no options for the OEM housing you could look at getting it extrude honed and a different turbine wheel fitted if you really want the OEM look
                        Originally posted by ALLMTR
                        the theory is the fuel pump is one of the only things that can fuck out on a diesel

                        Comment


                          #13
                          hat a chat with proflow... they're familiar with the unit, and can do a new compressor wheel for it, along with some modification to the turbine wheel, and doing something to the thrust bearing.

                          we're currently seeing 2.1bar at 4500 falling to 1.6 by 6500. they don't think that 2.1bar to redline is realistic (in particular 2 bar on the core is probably a bad thing long term) they reckon they can get it early up to 2.0 and it'll hold 1.8-1.9 to the end.

                          $700, 2 week turn around.
                          Mit freundlichen Gre

                          Originally posted by Keith Duckworth
                          "I think that in a racing engine, the closer it is to disintegrating, in general the better its performance will be "

                          Comment


                            #14
                            and the follow through...



                            be a while 'till i see what it actually does, but it does look good!
                            Mit freundlichen Gre

                            Originally posted by Keith Duckworth
                            "I think that in a racing engine, the closer it is to disintegrating, in general the better its performance will be "

                            Comment


                              #15
                              That looks like a sizable upgrade!

                              Comment

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